Use this list of supported IDs and formats when creating a Custom Audience with a Customer File.
Learn more about Customer File audiences.
ID | Accepted Formats | Required header description | ID formatting requirements |
Mobile Advertiser IDs (MAIDs):- Apple IDFA -GAID | Original value, MD5 Hashed, or SHA256 Hashed | MAID or MAID_MD5 or MAID_SHA256 | - All characters must be uppercase or lowercase - Character capitalization must be consistent |
Phone | Original value or SHA256 Hashed | Phone or Phone_SHA256 | - E.164 format only- “+” & Country Code & Phone Number, no space- For example, +442071838750, +551155256 |
Original value or SHA256 Hashed | Email or Email_SHA256 | - Lowercase only- ID should start with numbers or letters- Example: - Remove '+' and any characters following the '+' symbol until '@'. (example below)- Remove all possible '.' within the username before '@'. (example below) |
Note:
Your file will be hashed automatically if there are original values or values that are not hashed.
Before hashing, the contents of your file need to contain consistent capitalization.
Apple's Identifier For Advertising (IDFA) or Google Advertising ID (GAID) can be combined in the same file, with each entry on a separate line.
Each header can appear a maximum of 3 times in one file for a file with multiple IDs.